Light steel keel is a commonly used building material, which mainly plays the role of support and structural reinforcement. It is made of aluminum alloy or hot-dip galvanized steel strip, and has the characteristics of light weight, high strength, waterproof, shockproof, dustproof, sound insulation, sound absorption, and constant temperature. Because of its excellent performance, light steel keel is widely used in the ceiling and interior decoration of hotels, stations, shopping malls, factories, office buildings and other buildings. Although it is usually a concealed material, its role is essential to the stability and functionality of the building